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70744411 = 439161149
BaseRepresentation
bin1000011011101…
…11100101011011
311221010012002101
410031313211123
5121102310121
611004144231
71516213633
oct415674533
9157105071
1070744411
1136a2a361
121b838077
131186c5ca
1495776c3
156326491
hex437795b

70744411 has 4 divisors (see below), whose sum is σ = 70906000. Its totient is φ = 70582824.

The previous prime is 70744403. The next prime is 70744483. The reversal of 70744411 is 11444707.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70744411 - 23 = 70744403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70744411.

It is not an unprimeable number, because it can be changed into a prime (70784411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80136 + ... + 81013.

It is an arithmetic number, because the mean of its divisors is an integer number (17726500).

Almost surely, 270744411 is an apocalyptic number.

70744411 is the 3762-nd centered decagonal number.

70744411 is a deficient number, since it is larger than the sum of its proper divisors (161589).

70744411 is a wasteful number, since it uses less digits than its factorization.

70744411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161588.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 70744411 is about 8410.9696825039. The cubic root of 70744411 is about 413.5843007752.

It can be divided in two parts, 707444 and 11, that added together give a triangular number (707455 = T1189).

The spelling of 70744411 in words is "seventy million, seven hundred forty-four thousand, four hundred eleven".

Divisors: 1 439 161149 70744411